CN112832820B - Mudpack rock mass supporting method suitable for mudpack rock - Google Patents
Mudpack rock mass supporting method suitable for mudpack rock Download PDFInfo
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- CN112832820B CN112832820B CN202110241891.XA CN202110241891A CN112832820B CN 112832820 B CN112832820 B CN 112832820B CN 202110241891 A CN202110241891 A CN 202110241891A CN 112832820 B CN112832820 B CN 112832820B
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- 239000011435 rock Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000013016 damping Methods 0.000 claims abstract description 18
- 230000035939 shock Effects 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims description 38
- 239000002002 slurry Substances 0.000 claims description 36
- 239000007921 spray Substances 0.000 claims description 19
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 10
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- 238000005553 drilling Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
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- 230000006978 adaptation Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 10
- 239000011440 grout Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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Abstract
The invention belongs to the technical field of mining equipment, and particularly relates to a mudjack rock mass sealing supporting method suitable for mudjack, which comprises a hand-held guniting mechanism, wherein the hand-held guniting mechanism comprises a bottom plate, supporting wheels are installed at the bottom of the bottom plate, a rear fixed seat is installed on the top surface of the bottom plate and is rotatably connected with the bottom end of an electric push rod through a lower connecting seat, the top end of the rear fixed seat is rotatably connected with the side surface of a sliding sleeve, the top end of the electric push rod is rotatably connected with an arc-shaped bottom plate, an inner sliding rod is slidably installed on the inner side of an outer fixed sleeve connected with the arc-shaped bottom plate, the inner sliding rod is fixedly connected with a lower fixed plate through a connecting block, a damping spring is fixed between the inner sliding rod and the outer fixed sleeve, the lower fixed plate and the upper fixed plate are fixedly installed on the outer side of a quick-connection type grout sprayer, the rear side of the top surface of the bottom plate is connected with an anti-slip grab handle and a U-shaped frame through a lower connecting frame, a transverse pipe and an upper connecting frame, a buffering sleeve is sleeved on the outer side of the U-shaped frame, a U-shaped frame is sleeved with a buffering sleeve, a buffering sleeve is sleeved on the buffering sleeve, and a buffering sleeve is sleeved on the upper connecting frame, and a buffering sleeve is sleeved on the upper connecting frame, and a supporting sleeve is arranged on the upper connecting frame, and a supporting sleeve is arranged on the upper connecting rod is arranged on the upper connecting frame, and a supporting sleeve, and a supporting mechanism is arranged on the supporting mechanism, and a supporting mechanism, the supporting mechanism, and a supporting mechanism is arranged on the supporting mechanism, and a supporting mechanism, the supporting mechanism, and a supporting mechanism is arranged on the supporting mechanism, and a supporting mechanism, The buffer sleeve can play the effect of auxiliary stay, and damping spring, shock pad can cushion the energy-absorbing, alleviate personnel's work burden.
Description
Technical Field
The invention belongs to the technical field of mining equipment, and particularly relates to a method for supporting a muddied rock mass suitable for muddied rock.
Background
Hard rock itself can serve a good support function, especially in the case of not too great a depth of cut. However, if a roadway is excavated in soft rock and weak rock containing complex components, great difficulty is encountered in supporting. Therefore, the qualitative knowledge and countermeasures of soft rock have long been the key challenge for both Chinese and foreign scientists and engineers engaged in mine support work.
Rocks in a natural state are classified into consolidated rocks, cohesive rocks, granular rocks, fluid rocks (such as quicksand), and the like according to the binding characteristics between solid mineral particles. The term "consolidated rock" refers to a rock in which solid particles of a rock-making mineral are rigidly connected to each other and which can retain a predetermined shape after being crushed. In the construction of coal mine tunnels, most of the rocks are consolidation rocks, and the rocks are sandstone, limestone, sandy shale, argillaceous shale, mud shale, siltstone and the like. More rarely, igneous rocks and marl rocks are found.
According to the mechanical strength and firmness of the rock, the consolidated rock can be divided into hard rock and soft rock. Rocks having a unidirectional compressive strength of more than 100kg/cm2 in a water-saturated state are generally referred to as hard rocks, while rocks having a unidirectional compressive strength of less than 50 kg/cm2 are referred to as soft or socalled rocks. The soft rock has the characteristics of loose structure, small volume weight, large porosity, low strength, easy expansion when meeting water, obvious rheological property and the like. From the point of view of mine pressure control, such rocks often cause great difficulties in the timbering work.
Adopt distributed slip casting through the tunnel after trading the mud, multi-level mode of strutting can effectively improve the initial strength of strutting, guarantee construction safety simultaneously for guaranteeing the continuous slip casting reinforcement in later stage and provide the basis, however, consider environmental factor and cost factor, the slip casting operation in narrow and small tunnel space all carries out the operation of spouting through the artifical mode of holding the mortar shower nozzle at present, recoil and the vibrational force that the mortar shower nozzle produced are serious to the physical stamina consumption of human body among the whitewashing process, be unfavorable for going on in succession and the safety work of operation of spouting.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a mudjack rock mass supporting method suitable for mudjack rocks, wherein a U-shaped frame and a buffer sleeve can play a role of auxiliary support, and a damping spring and a shock pad can buffer and absorb energy, so that the work load of personnel is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a method for supporting a muddled rock mass suitable for muddled rock comprises a hand-held guniting mechanism, wherein the hand-held guniting mechanism comprises a bottom plate, supporting wheels are rotatably mounted on the left side and the right side of the bottom plate bottom through supports, a rear fixing seat is fixedly mounted on the top surface of the bottom plate, the bottom end of an electric push rod is rotatably connected to the bottom surface of the bottom plate through a lower connecting seat, reinforcing ribs are welded to the bottom surface of the bottom plate and the edges of the bottom surface of the bottom plate below the rear fixing seat and the lower connecting seat, rear supporting legs are welded to the rear ends of the bottom surfaces of the reinforcing ribs, the top end of the rear fixing seat is rotatably connected to the left side and the right side of a sliding sleeve, a quick-connection type slurry sprayer is slidably mounted on the inner side of the sliding sleeve, the top end of the electric push rod is rotatably connected to the bottom surface of an arc bottom plate through an upper connecting seat, the left end and the right end of the arc bottom plate are welded to the side of an outer fixing sleeve, and the inner sliding rod is slidably mounted on the inner side of the outer fixing sleeve, the side surface of the inner sliding rod is welded with a connecting block which is arranged at the inner side of the sliding chute in a sliding way, the top end of the connecting block is welded with the left side and the right side of the bottom surface of the lower fixed plate, a damping spring is fixedly arranged between the front end face and the rear end face of the inner sliding rod and the inner end face of the outer fixing sleeve, the lower fixing plate is fixedly connected with the upper fixing plate through a connecting bolt and sleeved on the outer side of the quick-connection type slurry spray head, the top surface of the bottom plate behind the rear fixed seat is fixedly provided with a direct current battery box, the top surface of the bottom plate behind the direct current battery box is fixedly connected with the bottom end of the lower connecting frame, the top end of the lower connecting frame is fixedly connected with an anti-skid grab handle, the front side of the top of the anti-skid grab handle is provided with a control switch, the inner side of the anti-skid grab handle is fixedly connected with two ends of the transverse pipe, the top surface of the transverse pipe is fixedly connected with a U-shaped frame through an upper connecting frame, and a buffer sleeve is sleeved on the outer side of the U-shaped frame.
Preferably, the bottom plate is of a square thin plate structure, the reinforcing ribs are of a metal square tube structure, the number of the supporting wheels is two, the supporting wheels are symmetrically arranged on the left side and the right side of the bottom plate, and rubber sleeve handles are sleeved outside the anti-skid grab handles; the hand-held guniting mechanism with compact structure and light weight can move on an initial driving roadway in a severe environment under the rolling support of the supporting wheels so as to carry out guniting operation on working faces in different distances and different directions.
Preferably, the number of the rear supporting legs is two, the rear supporting legs are symmetrically arranged on the left side and the right side of the bottom plate, and when the top surface of the bottom plate is in a horizontal state, the bottom ends of the rear supporting legs are 5-15 cm higher than a horizontal tangent plane where the lowest end of the supporting wheel is located; the rear supporting legs play a balance role when the hand-held guniting mechanism is positioned, improve the placing stability of the hand-held guniting mechanism, and are used as supporting points in guniting operation to offset part of recoil force generated in the guniting process of the quick-connection type grout nozzle.
Preferably, the lower connecting frame and the upper connecting frame are both of metal rod structures with top ends inclined towards the extending direction behind the bottom plate, and the buffer sleeve is of a circular tube type sponge sleeve structure; when the anti-skidding grab handle is held by an operator to drive the quick-connection type slurry sprayer installed on the base plate to carry out guniting operation, the U-shaped frame and the buffer sleeve can be supported against the chest position of the operator to carry out auxiliary support, and the pressure on the shoulder and the arm of the operator when carrying out guniting operation is shared and reduced, so that the effective working time of the operator is prolonged.
Preferably, the control switch is electrically connected with the direct current battery box and the electric push rod, a direct current power supply module is arranged in the direct current battery box, and the lower connecting seat is arranged on the top surface of the bottom plate in front of the rear fixing seat; the operating personnel can respectively control the control switches on the left side and the right side when holding the antiskid grab handle so as to adjust the telescopic length of the electric push rod, further control the spraying elevation angle of the quick-connection type slurry sprayer, and do not need to change the front horizontal inclination angle and the rear horizontal inclination angle of the base plate and the U-shaped frame fixedly connected with the base plate, so that the buffer sleeve and the U-shaped frame always keep a better auxiliary supporting effect.
Preferably, the lower fixing plate and the upper fixing plate are arc-shaped plate structures with the same structure size, through holes adaptive to mounting connecting bolts are vertically formed in the left side and the right side of the lower fixing plate and the upper fixing plate, the sliding chute is of a square through groove structure formed along the axial direction of the outer fixing sleeve, the rear end of a cylinder body of the damping spring is in press contact with the end face of the inner sliding rod, and the front end of a push rod of the damping spring is in press contact with the inner end face of the outer fixing sleeve; when the quick-connection type slurry spray head moves back and forth by generating the constantly-changing recoil under the influence of the inner side slurry spray pressure, the damping spring can play a role in buffering and absorbing energy, and the influence of the constantly-changing recoil on the physical strength of an operator in the slurry spraying operation is reduced.
Preferably, shock pads are fixedly bonded on the opposite surfaces of the lower fixing plate and the upper fixing plate, and the front end surface and the rear end surface of each shock pad are flush with the front end surface and the rear end surface of the lower fixing plate and the upper fixing plate; the shock pad can increase the frictional force between bottom plate, an upper fixed plate and the formula that connects soon thick liquid shower nozzle on the one hand, improves the centre gripping stability of bottom plate, an upper fixed plate, and on the other hand also can play the effect of shock attenuation energy-absorbing, reduces the thick liquid and sprays the influence to operating personnel physical power of the vibrations that strike the formula that connects soon thick liquid shower nozzle inner wall in-process and produce.
Preferably, the method comprises the following steps:
s1, holding the antiskid grab handle, moving the hand-held guniting mechanism to a proper position in front of the section, and pressing down the antiskid grab handle to enable the antiskid grab handle to be used as a supporting point;
s2, connecting the tail end of the quick-connection type slurry spray head with the head end of the mortar spray pipe, adjusting the standing position to enable the front breast to be attached to the buffer sleeve, controlling the electric push rod to stretch through the control switch, and adjusting the elevation angle of the quick-connection type slurry spray head;
s3, spraying a concrete primary spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope;
s4, spraying a second concrete spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope;
s5, spraying a concrete three-spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope → hanging a metal net;
and S6, spraying a concrete four-spraying layer.
Compared with the prior art, the invention has the beneficial effects that: the walking type guniting mechanism with compact structure and light weight can move on an initial driving roadway in severe environment under the rolling support of the supporting wheels so as to carry out guniting operation on working surfaces at different distances and in different directions; the rear supporting legs play a balance role when the hand-held guniting mechanism is positioned, improve the placing stability of the hand-held guniting mechanism, and are used as supporting points in guniting operation to offset part of recoil force generated in the guniting process of the quick-connection type grout sprayer; when an operator holds the antiskid grab handle by hand to drive the quick-connection type slurry spray head arranged on the bottom plate to carry out slurry spraying operation, the U-shaped frame and the buffer sleeve can be abutted against the chest position of the operator to carry out auxiliary support, so that the pressure on the shoulder and the arm of the operator during the slurry spraying operation is reduced in a sharing manner, and the effective working time of the operator is prolonged; an operator can respectively control the control switches on the left side and the right side when holding the antiskid grab handle so as to adjust the telescopic length of the electric push rod, further control the elevation angle of the guniting of the quick-connection type slurry nozzle, and the front horizontal inclination angle and the rear horizontal inclination angle of the base plate and the U-shaped frame fixedly connected with the base plate do not need to be changed, so that the buffer sleeve and the U-shaped frame always keep a better auxiliary supporting effect; when the quick-connection type slurry spray head moves back and forth by generating the constantly-changing recoil under the influence of the spraying pressure of the slurry on the inner side, the damping spring can play a role in buffering and absorbing energy, and the influence of the constantly-changing recoil on the physical strength of an operator in the slurry spraying operation is reduced; the shock pad can increase the frictional force between bottom plate, an upper fixed plate and the formula that connects soon thick liquid shower nozzle on the one hand, improves the centre gripping stability of bottom plate, an upper fixed plate, and on the other hand also can play the effect of shock attenuation energy-absorbing, reduces the thick liquid and sprays the influence to operating personnel physical power of the vibrations that strike the formula that connects soon thick liquid shower nozzle inner wall in-process and produce.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
fig. 3 is a longitudinal sectional view of the outer fixing sleeve of the present invention;
in the figure: 1. a hand-held guniting mechanism; 101. a base plate; 102. a support; 103. a support wheel; 104. reinforcing ribs; 105. a rear leg; 106. a rear fixed seat; 107. a sliding sleeve; 108. an electric push rod; 109. an upper connecting seat; 110. a lower connecting seat; 111. an arc-shaped bottom plate; 112. an outer fixing sleeve; 1121. a chute; 113. an inner slide bar; 114. a damping spring; 115. connecting blocks; 116. a lower fixing plate; 117. a connecting bolt; 118. an upper fixing plate; 119. a shock pad; 120. a quick connect slurry nozzle; 121. a lower connecting frame; 122. an anti-slip grip; 123. an upper connecting frame; 124. a U-shaped frame; 125. a buffer sleeve; 126. a transverse tube; 127. a control switch; 128. and a direct current battery box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the present invention provides the following technical solutions: a method for supporting a muddled rock mass suitable for muddled rock comprises a hand-held guniting mechanism 1, wherein the hand-held guniting mechanism 1 comprises a bottom plate 101, supporting wheels 103 are rotatably installed on the left side and the right side of the bottom plate 101 through supports 102, a rear fixing seat 106 is fixedly installed on the top surface of the bottom plate 101, the bottom end of an electric push rod 108 is rotatably connected with the bottom end of the bottom plate 101 through a lower connecting seat 110, reinforcing ribs 104 are welded on the bottom surfaces of the bottom plate 101 and the bottom surface of the bottom plate 101 below the rear fixing seat 106 and the lower connecting seat 110, rear supporting legs 105 are welded at the rear ends of the bottom surfaces of the reinforcing ribs 104, the left side and the right side of a sliding sleeve 107 are rotatably connected with the top end of the sliding sleeve 107, a quick-connection type slurry sprayer 120 is slidably mounted on the inner side of the sliding sleeve 107, the bottom surface of an arc-shaped bottom plate 111 is rotatably connected with the left side and the right side of an outer fixing sleeve 112 through an upper connecting seat 109, the inboard slidable mounting of outer fixed cover 112 has interior slide bar 113, the side welding of interior slide bar 113 has the connecting block 115 that the slip set up at the spout 1121 inboard, the left and right sides of connecting block 115's top welded connection bottom plate 116 bottom surface, it has damping spring 114 to decide between the front and back terminal surface of interior slide bar 113 and the interior terminal surface of outer fixed cover 112, bottom plate 116 passes through connecting bolt 117 fixed connection top plate 118 and suit in the outside of quick-connect formula thick liquid shower nozzle 120, the top surface fixed mounting of the bottom plate 101 at rear fixing base 106 rear has direct current battery box 128, the bottom of link 121 is down connected to the top fixed connection of the bottom plate 101 at direct current battery box 128 rear, the top fixed connection of link 121 has anti-skidding grab handle 122 down, control switch 127 is installed to the front side at anti-skidding grab handle 122 top, the both ends of anti-skidding grab handle 122's inboard fixed connection violently pipe 126, the top surface of the horizontal tube 126 is fixedly connected with a U-shaped frame 124 through an upper connecting frame 123, and a buffer sleeve 125 is sleeved outside the U-shaped frame 124.
Specifically, the bottom plate 101 is a square thin plate structure, the reinforcing ribs 104 are metal square tube structures, the number of the supporting wheels 103 is two, the supporting wheels are symmetrically arranged on the left side and the right side of the bottom plate 101, and rubber sleeve handles are sleeved outside the anti-skid grab handles 122; the hand-held guniting mechanism 1 with compact structure and light weight can move on an initial driving roadway with severe environment under the rolling support of the supporting wheels 103 so as to carry out guniting operation on working surfaces with different distances and different directions.
Specifically, the number of the rear supporting legs 105 is two, the rear supporting legs are symmetrically arranged on the left side and the right side of the bottom plate 101, and when the top surface of the bottom plate 101 is in a horizontal state, the bottom ends of the rear supporting legs 105 are 5-15 cm higher than a horizontal tangent plane where the lowest end of the supporting wheel 103 is located; the rear support legs 105 play a balancing role when the hand-held guniting mechanism 1 is positioned, improve the placing stability of the hand-held guniting mechanism 1, and are used as supporting points in guniting operation to counteract the recoil generated in the guniting process of part of the quick-connection type slurry nozzle 120.
Specifically, the lower connecting frame 121 and the upper connecting frame 123 are both metal rod structures with top ends inclined towards the extending direction of the rear of the bottom plate 101, and the buffer sleeve 125 is a circular tube type sponge sleeve structure; when an operator holds the anti-slip grab handle 122 to drive the quick-connection type slurry sprayer 120 installed on the base plate 101 to carry out slurry spraying operation, the U-shaped frame 124 and the buffer sleeve 125 can abut against the chest position of the operator to carry out auxiliary support, so that the pressure on the shoulder and the arm of the operator during the slurry spraying operation is reduced in a sharing manner, and the effective working time of the operator is prolonged.
Specifically, the control switch 127 is electrically connected to the dc battery box 128 and the electric push rod 108, a dc power module is disposed inside the dc battery box 128, and the lower connecting seat 110 is disposed on the top surface of the bottom plate 101 in front of the rear fixing seat 106; an operator can respectively control the control switches 127 on the left side and the right side when holding the anti-skid grab handle 122 to adjust the telescopic length of the electric push rod 108, so as to control the elevation angle of the guniting of the quick-connection type slurry nozzle 120, without changing the front and back horizontal inclination angles of the bottom plate 101 and the U-shaped frame 124 fixedly connected with the bottom plate 101, thereby enabling the buffer sleeve 125 and the U-shaped frame 124 to always keep a better auxiliary supporting function.
Specifically, the lower fixing plate 116 and the upper fixing plate 118 are arc-shaped plate structures with the same structure size, through holes adapted to mount the connecting bolts 117 are vertically formed in the left side and the right side of the lower fixing plate 116 and the upper fixing plate 118, the chute 1121 is a square through groove structure formed along the axial direction of the outer fixing sleeve 112, the rear end of the cylinder body of the damping spring 114 is in press contact with the end surface of the inner sliding rod 113, and the front end of the push rod of the damping spring 114 is in press contact with the inner end surface of the outer fixing sleeve 112; when the quick-connection type slurry spray head 120 moves back and forth by generating the constantly-changing recoil under the influence of the spraying pressure of the slurry on the inner side, the damping spring 114 can play a role in buffering and absorbing energy, and the influence of the constantly-changing recoil on the physical strength of an operator in the slurry spraying operation is reduced.
Specifically, shock absorbing pads 119 are fixedly bonded to the opposite surfaces of the lower fixing plate 116 and the upper fixing plate 118, and the front and rear end surfaces of the shock absorbing pads 119 are flush with the front and rear end surfaces of the lower fixing plate 116 and the upper fixing plate 118; the shock pad 119 can increase the frictional force between lower fixed plate 116, upper fixed plate 118 and the formula that connects soon thick liquid shower nozzle 120 on the one hand, improves the centre gripping stability of lower fixed plate 116, upper fixed plate 118, and on the other hand also can play the effect of shock attenuation energy-absorbing, reduces the influence of the vibrations that thick liquid sprays impact formula thick liquid shower nozzle 120 inner wall in-process production to operating personnel physical power.
Specifically, the method comprises the following steps:
s1, holding the anti-skid grab handle 122, moving the hand-held guniting mechanism 1 to a proper position in front of the section, and pressing down the anti-skid grab handle 122 to enable the anti-skid grab handle 122 to be used as a supporting point;
s2, connecting the tail end of the quick-connection type slurry spray head 120 with the head end of the mortar spray pipe, adjusting the standing position to enable the front breast to be attached to the buffer sleeve 125, controlling the electric push rod 108 to stretch through the control switch 127, and adjusting the elevation angle of the quick-connection type slurry spray head 120;
s3, spraying a concrete primary spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope;
s4, spraying a second concrete spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope;
s5, spraying a concrete three-spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope → hanging a metal net;
and S6, spraying four concrete spraying layers.
The working principle and the using process of the invention are as follows: the hand-held guniting mechanism 1 is moved by holding the antiskid grab handle 122, the hand-held guniting mechanism 1 is moved to a proper position in front of the section under the rolling support of the supporting wheel 103, the antiskid grab handle 122 is pressed downwards, the antiskid grab handle 122 is used as a supporting point, the tail end of the quick-connection type slurry nozzle 120 and the head end of the mortar spray pipe are connected, the standing posture is adjusted, the forebreast is attached to the buffer sleeve 125, the electric push rod 108 is controlled to stretch through the control switch 127, the elevation angle of the quick-connection type slurry nozzle 120 is adjusted, an assistant starts a guniting machine delivery pump to carry out guniting operation, the concrete mortar generates recoil when being sprayed out from the front end of the quick-connection type slurry nozzle 120, the lower fixing plate 116 and the upper fixing plate 118 which are clamped on the outer side of the quick-connection type slurry nozzle 120 are driven to move synchronously, the lower fixing plate 116 drives the inner sliding rod 113 to move through the connecting block 115 when moving, and the inner sliding rod 113 slides on the inner side of the outer fixing sleeve 112, the damping spring 114 is squeezed to play a role in buffering and energy absorption, the influence of the recoil force changing constantly in the guniting operation on the physical strength of an operator is reduced, the vibration generated in the process that the grout is sprayed and impacts the inner wall of the quick-connection type grout nozzle 120 can be absorbed and absorbed by damping cushion 119, so that the influence on the physical strength of the operator is reduced, when the guniting surface needs to be adjusted, the operator can hold the anti-slip grab handle 122 to horizontally rotate the base plate 101, adjust the horizontal spraying angle of the quick-connection type grout nozzle 120, adjust the telescopic length of the electric push rod 108 by controlling the control switches 127 on the left side and the right side, further control the guniting elevation angle of the quick-connection type grout nozzle 120, the front horizontal inclination angle and the rear horizontal inclination angle of the base plate 101 and the U-shaped frame 124 fixedly connected with the base plate 101 do not need to be changed, and the buffer sleeves 125 and the U-shaped frame 124 always keep a good auxiliary supporting effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a sealed argillization rock mass supporting device suitable for argillization rock which characterized in that: the portable mortar spraying device comprises a handheld mortar spraying mechanism (1), wherein the handheld mortar spraying mechanism (1) comprises a bottom plate (101), supporting wheels (103) are rotatably installed on the left side and the right side of the bottom plate (101) through supports (102), a rear fixing seat (106) is fixedly installed on the top surface of the bottom plate (101) and the bottom end of an electric push rod (108) is rotatably connected through a lower connecting seat (110), reinforcing ribs (104) are welded on the bottom surface of the bottom plate (101) below the rear fixing seat (106) and the bottom surface of the bottom plate (101), rear supporting legs (105) are welded at the rear end of the bottom surface of the reinforcing ribs (104), the top end of the rear fixing seat (106) is rotatably connected with the left side surface and the right side surface of a sliding sleeve (107), a quick-connection type mortar sprayer (120) is slidably sleeved on the inner side of the sliding sleeve (107), and the top end of the electric push rod (108) is rotatably connected with the bottom surface of an arc-shaped bottom plate (111) through an upper connecting seat (109), the utility model discloses a quick-connect slurry sprayer, including arc bottom plate (111), the side bottom of outer fixed cover (112) of both ends welded connection about, the inboard slidable mounting of outer fixed cover (112) has interior slide bar (113), the side welding of interior slide bar (113) has connecting block (115) that slide setting is inboard at spout (1121), the left and right sides of top welded connection bottom plate (116) bottom surface of connecting block (115), damping spring (114) are decided to be put between the front and back terminal surface of interior slide bar (113) and the interior terminal surface of outer fixed cover (112), bottom plate (116) pass through connecting bolt (117) fixed connection top plate (118) and suit in the outside of quick-connect slurry sprayer (120), the top surface fixed mounting of bottom plate (101) at rear fixing base (106) rear has direct current battery case (128), the top surface fixed connection bottom of bottom link (121) of bottom plate (101) at direct current battery case (128) rear, the top fixedly connected with antiskid grab handle (122) of lower link (121), control switch (127) is installed to the front side at antiskid grab handle (122) top, the both ends of violently managing (126) are connected to the inboard fixed connection of antiskid grab handle (122), the top surface of violently managing (126) is through last link (123) fixedly connected with U type frame (124), the outside cover of U type frame (124) is equipped with buffer tube (125), lower fixing plate (116), upper fixing plate (118) are the same arc plate structure of structure size, the through-hole of adaptation installation connecting bolt (117) is all seted up perpendicularly to the left and right sides of lower fixing plate (116), upper fixing plate (118), spout (1121) are the square through groove structure of seting up along the axial of outer fixed cover (112), the rear end pressure touch of the cylinder body of damping spring (114) is connected the terminal surface of interior slide bar (113), the front end of the push rod of the damping spring (114) is in press-contact connection with the inner end face of the outer fixing sleeve (112), shock absorption pads (119) are fixedly bonded on the faces of the lower fixing plate (116) and the upper fixing plate (118) in the opposite direction, and the front end face and the rear end face of each shock absorption pad (119) are flush with the front end face and the rear end face of the lower fixing plate (116) and the upper fixing plate (118).
2. The mudpack rock mass support device suitable for mudstone according to claim 1, characterized in that: the anti-skid device is characterized in that the bottom plate (101) is of a square thin plate structure, the reinforcing ribs (104) are of a metal square tube structure, the number of the supporting wheels (103) is two, the supporting wheels are symmetrically arranged on the left side and the right side of the bottom plate (101), and rubber sleeve handles are sleeved outside the anti-skid grab handles (122).
3. The mudpack rock mass support device suitable for mudstone according to claim 1, characterized in that: the number of the rear supporting legs (105) is two, the rear supporting legs are symmetrically arranged on the left side and the right side of the bottom plate (101), and when the top surface of the bottom plate (101) is in a horizontal state, the bottom ends of the rear supporting legs (105) are higher than a horizontal tangent plane where the lowest end of the supporting wheel (103) is located by 5-15 cm.
4. The mudpack rock mass support device suitable for mudstone according to claim 1, characterized in that: the lower connecting frame (121) and the upper connecting frame (123) are both metal rod structures with top ends inclined towards the extending direction behind the bottom plate (101), and the buffer sleeve (125) is a circular tube type sponge sleeve structure.
5. The mudpack rock mass support device suitable for mudstone according to claim 1, characterized in that: the control switch (127) is electrically connected with the direct-current battery box (128) and the electric push rod (108), a direct-current power supply module is arranged inside the direct-current battery box (128), and the lower connecting seat (110) is arranged on the top surface of the bottom plate (101) in front of the rear fixing seat (106).
6. The use method of the mudpack rock mass support device suitable for the mudpack rock according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
s1, holding the anti-skid grab handle (122), moving the hand-held guniting mechanism (1) to a proper position in front of the section, and pressing down the anti-skid grab handle (122) to enable the anti-skid grab handle (122) to be used as a supporting point;
s2, connecting the tail end of the quick-connection type slurry spray head (120) with the head end of the mortar spray pipe, adjusting the standing position to enable the front chest to be attached to the buffer sleeve (125), controlling the electric push rod (108) to stretch through the control switch (127), and adjusting the elevation angle of the quick-connection type slurry spray head (120);
s3, spraying a concrete primary spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope;
s4, spraying a second concrete spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope;
s5, spraying a concrete three-spraying layer, drilling an anchor rod hole → installing an anchor rod → hanging a steel wire rope → hanging a metal net;
and S6, spraying a concrete four-spraying layer.
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| CN202110241891.XA CN112832820B (en) | 2021-03-04 | 2021-03-04 | Mudpack rock mass supporting method suitable for mudpack rock |
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